Julius c



rre STATES PATENT OFFICE.

JULIUS C. BROWN, OF SANTA BARBARA, CALIFORNIA. f

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 509,870, dated December5, 1893.

Application led August 14,1898. Serial No.483,05'7. (No model.)

To @ZZ whom it may concern:

Be it known that I, JULIUs C. BROWN, a citizen of the United States,residing at Santa Barbara, in the county of Santa Barbara and State ofCalifornia, have invented certain new and useful Improvements inNut-Locks; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which forrn a part of this specification.

The object of my invention is to provide a key for locking the nut,which shall itself be positively held in place by a peculiar form ofwasher-and which may be used in conjunction wlth any of the ordinaryforms of nuts.

The present invention is an improvement on the construction described inLetters Patent No. 481,731, issued to me October 18, 1892, 1n which thekey is held in position by friction, and a special form of nut isrequired.

.My invention consists of a key adapted to slide between the lower sideof the nut and the fish-plate, entirely filling the space between thetwo so that the nut cannot turn, the key having a ange, or rib,extending upwardly back of the nut, and a lug adapted to engage aslotted Washer, of peculiar form.

In the drawings, Figure 1, is a side eleva tion of portions of tworailway rails, united by fish-plates, upon which my nut locking device1s used. Fig. 2, is a plan section of the same on the line 2 2 ofFig. 1. Fig. 3,is atrans- Verse section on the line 3 3 of Fig. 1. Fig.41s a similar View on the line l1-ll of Fig. 1. Fig. 5, is a plansection on the line 5-5 of Fig. 1. Figs. 6 and 7, are elevations of thetwo forms of washers used. Fig. 8, isa view, 1n perspective, of thelocking key.

Ordinary railway rails are shown in the accompanying drawings at A, andfish-plates of the usual construction at B. The fish-plates are held tothe rails by the bolts c, and nuts C, in the usual manner. These nutsmay be square, or they may be hexagonal as shown, or of any other form.

The key piece E, is adapted to fit within the angle of the Iish-plateand fill the space between the lower surface of the nut C and thefish-plate, and having an upwardly projecting flange E', adapted to liebetween the nut and the vertical portion ot' the fish-plate. At one endof the key piece a lug c, projects upwardly from the flange E'. A washerD, is placed upon the bolt, back of the nut. This lug projects beyondthe nut at one side and is vertically slotted, as shown at ol, toreceive the lug c. The relative proportions ot' the parts are such thatthe upper edge of the flange E', lies against the lower edge of thewasher D. The washer D, is manufactured with its extended side, or end,curved outwardly as shown in Fig. 5. The nut C, having been turned up onthe bolt c, the key piece E is slid into place, and by a blow of thehammer the curved portion of the washer D, is flattened against thefish-plate, thus bringing the lug e, into engagement with the slot d.The ange E prevents the key piece from slipping out of place. Forconvenience of adjustment the key piece E, is preferably made with itsflange E beveled oi at the forward, or toe end, as shown.

The key piece E may be .of any desired length so as to adapt it for usewith one nut only, or any number of nuts lying near together. As shownit is of sufficient length to engage two nuts. When so used the keysshould be made as rights and lefts, so that one may be adjusted from oneend and the other from the other end of the fish-plate. When used with amultiple number of nuts the washers, except the one at the rearward, orheel end, of the key piece, may be of the ordinary circular form F,withone side clipped as shown. Should a strap be used in place of thetisl1plate, that is, a strip of metal lying along the web of the railonly, and not eX- tending laterally over the foot, the key will t intothe angle formed bythe outer surface of the strap and the upper surfaceof the foot piece, the situation being, so far, as the application of mynut-lock is concerned, the same in both forms of construction.

By the form of construction described I secure a positive lock,bothforthe nut and the key piece, ,while` providing for the easyseparationof the parts, as' the slotted end of the Washer may be readily bent soas to release the key piece, by the use of a lever. This operationwillnot injure the Washer so that reetion .and having such extended.portion transversely slotted to receive the ing of the Y key piece,substantially as described and for the purpose specified.

In testimony whereof I affix my signature in presence Yof two witnesses.

JULIUS C. BROWN.

Witnesses:

M. H. L. WING, L. K. GILLsoN.

